Is it recommended to have thank you page for Mobile App Install campaign?

I'm currently running a mobile app campaign for both Android and iOS. Is it considered Google best practice or highly recommended to have a "thank you page" in order to get proper conversion tracking data at GA for mobile? As now I need to track on monthly and annual membership signup of users.

Is it recommended to have thank you page for Mobile App Install campaign?

First lets understand there are no "Pages" in mobile apps there are screens.

Secondly I am a little confused if you are running app-Install campaigns then app launch itself is considered as conversion. If you want to run app-Install campaign with in App conversions then even screenview of subsription success page is enough.

Is it recommended to have thank you page for Mobile App Install campaign?

Thanks for your comment. Truly when users installed our app, conversion will be captured. Since we have different subscription option which is either monthly and yearly basis, creating goals through events or analytics will be a good strategy as advised earlier by @Joshua R.